68 results about "Organic matrix" patented technology

The invention discloses a passive radiation-cold storage composite box body and a preparation method. The box body sequentially comprises a composite radiation film, a heat insulation layer and a cold storage layer from outside to inside. The outer-layer radiation film is composed of an elastic organic matrix and high-reflection inorganic particles such as barium sulfate, has high solar reflectivity and mid-infrared high emissivity, and can effectively restrain solar absorption and achieve radiation heat dissipation in the daytime. The heat insulation layer is made of XPS, EPS, aerogel felt and other low-heat-conduction materials so as to reduce external heat transfer. Phase change microcapsules are dispersed in the cold storage layer, and flake graphite and other high-thermal-conductivity fillers can be added to improve the cold transfer efficiency and temperature uniformity. And the phase-change material realizes automatic cold storage and cold release through a latent heat mechanism, so that the temperature in the box body is kept stable. Through the synergistic effect of radiation refrigeration, heat insulation and phase change cold storage, long-time and recyclable passive cold chain temperature control is achieved, and the device has the advantages of being simple and convenient in structure, high in cost performance, flexible in application, uniform in internal temperature distribution and the like.

This invention belongs to the field of functional polymer composite materials technology, and more specifically relates to a titanium oxide cluster composite fiber membrane with broad-spectrum photoresponse, its preparation method, and its applications. The preparation method includes: using 3-fluorocatechol and titanate as reactants, a solvothermal reaction is carried out under an inert atmosphere to obtain trifluorocatechol-modified titanium oxide cluster crystals; then, these crystals are dissolved with thermoplastic polyurethane particles in an organic solvent to prepare a composite spinning solution, which is then electrospun and dried to obtain the composite fiber membrane. In this fiber membrane, the titanium oxide clusters are uniformly dispersed at the nanoscale, forming a three-dimensional porous network structure with a diameter of 100-1000 nm, exhibiting broad-spectrum strong absorption (300-1000 nm), superhydrophobicity, and excellent photothermal properties. This invention effectively solves the problem of inorganic nanoclusters agglomeration in organic matrices through surface modification, achieving synergistic antibacterial effects through photothermal and photocatalytic processes, and has broad application prospects in medical protection, intelligent thermal management textiles, and environmental purification.

The invention relates to the technical field of road engineering materials, and particularly discloses an ultra-thin anti-sliding layer material based on industrial solid waste. According to the composite filler provided by the invention, the waste plastic, the fly ash and the polymer coated rubber powder are compounded, and a continuous network or sea island structure is formed by the waste plastic, so that rubber powder particles are effectively locked, and the softening flow of the rubber powder particles at high temperature is inhibited, thereby greatly improving the rut resistance of an anti-skid layer material; the elastic particles of the rubber powder are also used as stress concentration points and flexible buffer units, so that the brittle crack propagation of the plastic phase at low temperature is prevented, and the low-temperature crack resistance is improved; the silanized fly ash serves as rigid particles and is dispersed in an organic matrix, when the material is stressed, the rigid particles can bear and disperse stress and improve modulus and compressive strength, after the material is treated by a silane coupling agent, the fly ash particles and organic phases (rubber powder and plastic) form chemical bonds or strong physical adsorption, stress is effectively transmitted at an interface, and the mechanical property of the material is improved. The toughness of the material is improved.

An impact energy dissipation plate for anti-ballistic armor, the dissipation plate including a damping material including a fibrous reinforcement bonded by an organic matrix including a thermosetting resin, the reinforcement including inorganic fibers assembled in the form of yarns, the damping material having the following features the volume fraction of fibrous reinforcement of the damping material is between 20% and 70%, the remainder to 100% including the matrix and porosity; the fibrous reinforcement includes at least 50% by volume of silica fiber yarns of which SiO2 content by mass of more than 90%, and the porosity of the damping material is between 2% and 10% by volume.

The present invention relates to an enhanced catalytic nickel oxide sheet having an organic part which includes non-stoichiometric nickel oxides dispersed in an organic matrix, wherein the catalytic sheet is supported on a substrate. The invention also relates to a method for obtaining the catalytic film and to its uses as an electrode in electrocatalysis of water or in photocatalysis.

The invention relates to a method for repairing a part (100) made of an organic matrix composite material at least partially covered with an erosion control film (30), the method comprising the following steps: - removing the erosion control film from a damaged area (50) of the part, - removing an initial adhesive (32) that initially fixed the film to the damaged area to form a hollow portion (55), - applying a repair adhesive (38) to the hollow portion (55) or to one face of a patch of a replacement erosion control film (30') shaped to replace the film in the damaged area, - applying the patch of the replacement film (30') to the damaged area, - polymerizing the repair adhesive (38) at a polymerization temperature below 100°C, forming a repaired area (60) in place of the damaged area (50). Figure 8 (for the abstract)

The invention relates to a method for manufacturing a blade or vane made of composite material, comprising: - obtaining (E10) an insert, comprising the production of a fibrous stack having a predetermined fibrous orientation by an automatic fiber placement technique, the composite insert comprising said fibrous stack impregnated with a thermosetting polymer, - obtaining (E12) a porous fibrous reinforcement obtained by three-dimensional weaving and having a disconnection defining two disconnected fibrous portions, - obtaining (E20) a fibrous assembly by introducing the insert inside the porous fibrous reinforcement, the insert thus introduced giving its shape to the reinforcement, - introducing (E30) a thermosetting resin into the porous fibrous reinforcement after the fibrous assembly has been obtained, and - co-curing (E40) the thermosetting resin thus introduced with the thermosetting polymer.

The invention discloses a novel liquid metal microcapsule heat conduction material, and relates to the technical field of heat conduction materials, and the novel liquid metal microcapsule heat conduction material comprises the following steps: S1, microcapsule preparation; s2, dispersing and compounding; and S3, curing and applying. According to the novel liquid metal microcapsule heat conduction material, high heat conduction and insulation are synergistic, a liquid metal core provides a high heat conduction path, a polymer shell ensures insulation, the performance bottleneck of a traditional material is broken through, and according to the microcapsule structure design, liquid metal (gallium-based alloy) is packaged in a flexible polymer leather film (PDMS / PU / ACRYLIC), high heat conduction is kept, and insulation is achieved. And a composite dispersion process: uniformly dispersing the microcapsules in a liquid organic matrix by adopting an ultrasonic dispersion technology to form a three-dimensional heat-conducting network. The heat conductivity coefficient of a finished product reaches 10 W / m.K or above, the minimum thermal resistance can reach 0.02 thermal resistance DEG C * cm < 2 > / W, and meanwhile, the heat-resistant and high-viscosity flexible cable has insulativity, heat resistance, high viscosity and bendability.

The invention relates to the technical field of MicroLED display, and particularly discloses a nanocrystalline color conversion layer for a MicroLED and a preparation method of the nanocrystalline color conversion layer. A nanocrystalline color conversion layer is formed at a low temperature of 150-400 DEG C by co-evaporating a perovskite precursor and an organic matrix material containing a P = O / S = O / C = O group. A magnetic metal mask is adopted, the distance between the mask and a substrate is controlled to be smaller than or equal to 0.5 mm, and a high-resolution patterned nanocrystalline color conversion layer is achieved. The dynamic vacuum degree of 5 * 10 <-4 > to 5 * 10 <-5 > Pa is maintained in the evaporation process, the deposition rate is 0.01-5 nm / s, the thickness of the obtained color conversion layer is 500-3000 nm, and the interface roughness Ra is smaller than 10 nm. The optical property of the nanocrystal is improved in situ through the matrix material, so that the fluorescence quantum yield reaches 85% or above, and the color gamut is gt; a 120% NTSC; mask design and process parameters are optimized, blockage is avoided, and pattern precision is improved; the full-dry process is compatible with mass production, and the yield is greater than 95%. The color conversion layer solves the problems of efficiency and stability in MicroLED full-color conversion.

The invention relates to a method for monitoring the manufacture of an organic matrix composite material, said method comprising: a) manufacturing (100), by assembling carbon fibres, a conductive layer having a useful portion intended to form a conductive ply of the organic matrix composite material to be manufactured and at least two excess portions protruding from the useful portion, b) inserting (120) electrical connectors, each one into at least one excess portion, c) connecting (130) an excitation and measurement device to each electrical connector, d) monitoring (140) one or more steps of manufacture of the organic matrix composite material from the conductive layer by means of the device, by supplying said layer with electrical energy and measuring an electrical value thereof, and e) removing (150) each excess portion.

The invention provides weather-resistant optical functional coating nanoparticles as well as a preparation method and application thereof, and belongs to the field of coatings. The nano particle comprises an inner core and an outer core, wherein the inner core is made of a near-infrared reflecting material; the near-infrared reflection material adopts metal oxide nanoparticles with a near-infrared reflection function; the first wrapping layer is a silicon dioxide middle layer and wraps the inner core; and the second wrapping layer is an aluminum oxide passivation layer and wraps the silicon dioxide intermediate layer. And the nano particles are used as functional filler of the weather-resistant optical functional coating. According to the core-shell structured nanoparticles provided by the invention, the specific passivation layer is introduced, so that the near-infrared reflection function of the core material is retained, and the photocatalytic damage of the core material to an organic matrix is fundamentally eliminated, thereby obtaining the coating with long-acting stability, high visible light transmittance, excellent spectral selectivity and weather resistance.

This invention discloses a neutron shielding material with a biomimetic chlorophyll structure and its preparation method, belonging to the field of artificial fiber technology. The method includes: S1, surface hydrophobic modification of boron-containing compounds and transition metal carbon / nitrides using a bifunctional silane coupling agent; S2, preparation of a core layer suspension containing modified powder and a shell layer solution containing a hydrophobic polymer; S3, construction of a wet precursor fiber membrane with a core-shell structure using coaxial electrospinning; S4, induction of solvent directional crystallization through directional temperature gradient field cryogenic treatment, followed by sublimation drying to form a biomimetic layered porous structure inside the core layer; S5, heat treatment to solidify the biomimetic layered structure. This invention solves the interfacial compatibility problem between inorganic fillers and organic matrices through the synergistic effect of interfacial chemical modification and biomimetic structural regulation, achieving spatially ordered arrangement of functional components. The resulting material possesses excellent lightweight properties, structural stability, and neutron shielding effectiveness.

The invention relates to a method for repairing a part (100) made of an organic-matrix composite material at least partially covered with an anti-erosion film (30), the method comprising the following steps: - removing the anti-erosion film from a damaged area (50) of the part; - removing an initial adhesive (32), initially attaching the film to the damaged area, so as to form a recessed portion (55); - depositing a repair adhesive (38) in the recessed portion (55) or on one face of a patch of a replacement anti-erosion film (30') shaped to replace the film of the damaged area; - placing the patch of the replacement film (30') on the damaged area; - and polymerising the repair adhesive (38) at a polymerisation temperature of less than 100°C forming a repaired area (60) to replace the damaged area (50).

The invention relates to a component (11) for an aircraft turbomachine, the component (11) comprising:-a body (12) comprising a composite material comprising an organic matrix and fibres embedded in the matrix, and-a fire barrier (13) arranged on at least one surface of the body (12), characterized in that the body (12) comprises at least one surface of the body (12); the fire barrier (13) is multilayer and comprises:-a perforated first layer (14) comprising glass fibers, and-a second layer (15) comprising fibers different from the glass fibers, the first layer (14) being located between the body (12) and the second layer (15).

The invention relates to a method for monitoring the manufacture of an organic matrix composite material comprising: a) manufacturing (100), by assembling carbon fibers, a conductive layer having a useful portion intended to form a conductive ply of the organic matrix composite material to be manufactured and at least two excess portions protruding from the useful portion, b) inserting (120) electrical connectors, each in at least one excess portion, c) connecting (130) an excitation and measurement device to each electrical connector, d) monitoring (140) one or more manufacturing steps of the organic matrix composite material from the conductive layer by the device by supplying it with electrical energy and measuring an electrical quantity thereof, e) removing (150) each excess portion. [Fig. 1]

The application provides a kind of weather-resistant optical functional coating nanoparticles and its preparation method and application, belong to the field of coating.The nanoparticles include: inner core, the inner core is near-infrared reflective material;The near-infrared reflective material uses metal oxide nanoparticles with near-infrared reflective function;First wrapping layer, the first wrapping layer is silica intermediate layer, which wraps the inner core;Second wrapping layer, the second wrapping layer is alumina passivation layer, which wraps the silica intermediate layer.The nanoparticles are used as the functional filler of weather-resistant optical functional coating.The application provides a kind of core-shell structure nanoparticles, by introducing specific passivation layer, while retaining the near-infrared reflective function of inner core material, fundamentally eliminate its photo-catalytic damage to organic matrix, so as to obtain long-acting stability, high visible light transmittance, excellent spectral selectivity and weather-resistant coating.

The present application relates to the technical field of medicine and chemical industry, in particular to a kind of alginate / nano lanthanum hydroxide composite microspheres and its preparation method and application.The composite microspheres use sodium alginate as organic matrix material, and nano lanthanum hydroxide as inorganic filling phase, which are prepared by electrospray technology, and can realize the uniform dispersion and wrapping of nano lanthanum hydroxide in alginate microspheres.The size of the composite microspheres can be adjusted as needed between 235.5 μm and 748.4 μm, and the mass ratio of alginate to nano lanthanum hydroxide can be adjusted as needed within 1: (0.5-1.5).The composite microspheres of the present application have a phosphorus binding capacity of 41.0 mg / g-90.0 mg / g in a gastric acid environment with pH=2, and excellent phosphorus binding ability, which can be used as an oral phosphorus binding agent for the treatment of hyperphosphatemia, providing a new technical solution for clinical intervention of hyperphosphatemia.

The invention relates to a blade (16) comprising a blade body (18) made of a fiber-reinforced organic matrix composite and a leading edge shield (20) having better resistance to point impact than the composite of the blade body, the leading edge shield (20) being assembled on the blade body (18) and comprising a pressure side fin (32) and a suction side fin (30) connected by a thicker central portion (34), the blade (16) comprising an aerodynamic profile height and a chord length; the suction side fin (30) having a first length (36) projected on the chord, a second length projected on the chord and a third length projected on the chord; the first length being between 10% and 18% of the chord length, the first length (36) being disposed between 70% and 80% of the aerodynamic profile height; the second length being between 18% and 26% of the chord length, the second length being disposed between 85% and 95% of the aerodynamic profile height; the third length being between the first length and the second length, the third length being disposed at 100% of the aerodynamic profile height. A turbine engine comprising the blade.

The invention discloses a lightweight gamma ray and X ray shielding material and a preparation method thereof, and belongs to the technical field of ray protection materials. The invention aims to solve the problems that in the prior art, Bi2O3 and Gd2O3 cannot have a synergistic effect, the compatibility of Bi2O3 and Gd2O3 with an organic matrix cannot be improved, and a ray shielding material with light weight, broadband efficient shielding and excellent mechanical properties is difficult to prepare. The shielding material is formed by compounding a base material and a functional filler, and the functional filler is a Bi2O3 and Gd2O3 composite protective particle. The method comprises the following steps: 1, preparing Bi2O3 and Gd2O3 composite protective particles; and 2, preparing the shielding material. The invention is used for the lightweight gamma ray and X ray shielding material and the preparation thereof.

The invention relates to a method for manufacturing an organic matrix composite part comprising at least one elastomer layer, comprising the following steps: producing a fibrous preform (100), consolidating the fibrous preform (110) with an organic matrix to obtain an organic matrix composite part, and forming a layer of the organic matrix composite part, at least one vulcanized unsaturated elastomer layer is bonded to the organic matrix composite component (130), wherein an adhesive film is interposed between the component and the bonding surface of the one or more unsaturated elastomer layers. The method comprises a step (120) of preparing a bonding surface (20a) of each unsaturated elastomer layer prior to the bonding step (130), where the preparation step comprises grafting a halogen element onto the bonding surface by a halogenation reaction.

The invention relates to the technical field of sole materials, in particular to a reflective sole material and a preparation method thereof. The butadiene rubber, the modified epoxy resin and the natural rubber are used as main compound materials, the reflective beads are used as reflective filler, and the finally prepared sole material integrally not only has the characteristics of high retroreflection coefficient and easiness in reflection, but also has wear resistance, and is suitable for preparation of sole materials, especially soles needing reflective characteristics. Besides, 4, 4 '-thiodiphenol and fluorenyl-containing bis-ether fluorene are used cooperatively in the process of preparing the modified epoxy resin, the refractive index of the epoxy resin is improved, the modified epoxy resin serves as one of main materials to be fused into a system, the large-area light reflecting effect of combining an organic matrix and the light reflecting beads can be achieved, and the light reflecting effect is good. And the reflection intensity of the sole is effectively improved. And meanwhile, the self-made reflective beads can effectively refract external light rays, so that the overall reflective intensity can be improved.

Protective coating for turbomachine blade. The invention relates to a blade (100) made of an organic matrix composite material, at least a portion of whose leading edge (111) is covered with a metallic shim (131). The blade is characterized in that at least a portion of the metallic shim is coated with at least: - a first layer comprising a first material, the first material being aluminum oxide, a metal carbide, or a metal nitride, the first layer being disposed directly on the leading edge of the blade body; and - in the case where the first material is not aluminum oxide, a second layer comprising a second material, the second material comprising a metal nitride, a metal carbide, a metal carbonitride, or a metal silicide different from the first material, the second layer being disposed directly on the first layer. Figure for the abstract: Fig. 1.

The application belongs to the technical field of textile machinery preparation, and particularly relates to a calcium titanate-based anti-static ceramic guide and a preparation method thereof. The calcium titanate-based anti-static ceramic guide comprises the following components in percentage by mass: 72-95% of calcium titanate and 5-28% of a functional additive, wherein the functional additive comprises titanium nitride and zirconium nitride; the preparation method comprises the following steps: S1: mixing calcium titanate powder, titanium nitride powder and zirconium oxide powder, and mixing and granulating the mixed powder with an organic matrix to obtain injection granules, and injection molding to obtain a ceramic guide blank containing the organic matrix; S2: performing heat debinding on the ceramic guide blank, and then performing high-temperature reaction under a nitrogen atmosphere to obtain a ceramic guide sintered body; and S3: performing hot isostatic pressing treatment on the ceramic guide sintered body. The CaTiO3 is used as a matrix, the functional additives TiN and ZrN are combined, and the anti-static ceramic guide with good wear resistance, electrical conductivity and anti-static capability is obtained.

This invention discloses a method for preparing a high-hardness Al2O3@Epoxy@PAA hybrid emulsion and its application, aiming to solve the problems of poor interfacial compatibility and weak bonding between nanoparticles and organic matrices, and to improve the hardness of coated pencils to ≥3H. The method is as follows: First, a solid epoxy resin aqueous emulsion is prepared using phase inversion emulsification technology; then, nano-Al2O3 powder is fluidized and sprayed into the epoxy emulsion through a fluidized bed low-temperature coating process, with the temperature controlled at 50–80℃, to obtain Al2O3@Epoxy core-shell composite microspheres; next, seed emulsion polymerization is carried out using these microspheres as seeds, including seed dispersion, pre-emulsification, and dripping of the pre-emulsion in a "starved state" mode at 75–85℃ followed by heat preservation and maturation; after the reaction is completed, the pH is adjusted and filtered, and no functional additives are added to directly obtain a hybrid emulsion with a solid content of 45–70 wt%. This emulsion-based nanofiller exhibits uniform dispersion and strong interfacial bonding, resulting in a coating film with a pencil hardness of 3H–4H, a gloss level of ≥90 at 60°, and a salt spray resistance of ≥500h. It is suitable for fast-drying, high-gloss, single-component water-based anti-corrosion coatings, applicable to metal protection, automotive parts, and appliance panels. This invention features a simple, green, and efficient process, achieving a balance between high hardness, high decorative properties, and high corrosion resistance.

This invention belongs to the field of silicon micropowder technology, and specifically discloses a submicron spherical modified silicon micropowder and its preparation method, including the following steps: (1) silicon micropowder pretreatment; (2) aminosilane gradient pH grafting; (3) plasma pretreatment and boron nitride coating; (4) post-treatment; The submicron spherical modified silicon micropowder prepared by this invention has achieved a breakthrough improvement in comprehensive performance, and can effectively reduce the internal porosity of composite materials; the thermal decomposition initiation temperature reaches above 428℃, and the mass retention rate at 800℃ exceeds 97.5%, meeting the high-temperature resistance requirements of high-end electronic materials; the oil absorption value is as low as 0.30-0.32mL / g, and the viscosity of the slurry dispersed in epoxy resin is only 820-850mPa·s, which greatly improves the compatibility with organic matrix and processing fluidity.

This invention relates to a semi-organic insulating coating for non-oriented silicon steel and its curing process. The coating comprises the following components by weight: 100 parts aluminum dihydrogen phosphate; 25-200 parts epoxy resin; and 0-1000 parts deionized water. This invention uses epoxy resin as the organic matrix and aluminum dihydrogen phosphate as the inorganic film-forming agent. The two can undergo a cross-linking curing reaction to generate P-O-C bonds, forming a stable organic-inorganic hybrid cross-linked structure. The coating exhibits optimal thermal stability when the mass ratio of epoxy resin to aluminum dihydrogen phosphate is 1:2. This invention also optimizes the curing process of the coating. The optimal curing process is 250℃ for 30 seconds. The coating obtained under this process is uniform and dense, without obvious porosity or agglomeration. It achieves a pencil hardness of 9H, adhesion of Grade A, and an interlayer resistance as high as 28.612 Ωcm², demonstrating excellent insulation performance. It is suitable for the rapid curing requirements of continuous industrial production lines for non-oriented silicon steel and has good application prospects.

The application relates to the technical field of high polymer materials, and discloses a modified polypropylene composite material for a sealing head and a preparation method thereof; the modified polypropylene composite material for the sealing head is composed of the following raw materials in parts by weight: 100 parts of polypropylene resin, 10-30 parts of alkali-treated bamboo fibers, 0.2-0.5 parts of graphene oxide, 5-8 parts of polypropylene grafted maleic anhydride, and 4-8 parts of modified trimer quaternary ammonium salt. The application constructs a soft fiber-hard particle system, increases the compatibility of the soft fiber, the hard particle and the organic matrix by using active polar groups, and further improves the mechanical properties of the polypropylene composite material. The antibacterial properties are improved by using the quaternary ammonium salt antibacterial structure and the graphene structure. The polypropylene composite material prepared by the application has good heat resistance, antibacterial properties and mechanical properties, and has wide use value in the field of sealing heads.

The invention discloses a fireproof flame-retardant basalt fiber pipeline for a large ship and a preparation method of the fireproof flame-retardant basalt fiber pipeline, and belongs to the technical field of composite material pipelines. A siloxane coating layer is constructed on the surface of basalt fiber through hydrolytic condensation reaction of tetraethoxysilane, so that the interfacial compatibility of the fiber and an organic matrix can be effectively improved; the surface roughness of the basalt fibers is improved, the fibers are prevented from being agglomerated in a matrix, ammonium polyphosphate is fixed through the silicon dioxide coating layer, the mechanical property and structural stability of the pipeline are improved, and the flame retardant effect is prolonged; ammonium polyphosphate is an efficient intumescent flame retardant, is combined with the basalt composite fiber in a nitrogen atmosphere, and can form a compact carbon layer when being heated to isolate oxygen and heat transfer; meanwhile, the basalt fibers have inorganic high-temperature-resistant characteristics, and the basalt fibers and the basalt fibers have a synergistic effect, so that the pipeline is endowed with excellent fireproof and flame-retardant effects, and the fireproof safety requirements of large ships are met.

The invention relates to a method for evaluating the compatibility of a conformal coating material and an electronic adhesive in electronic assembly, which comprises the following steps of: coating the conformal coating material to be detected and the electronic adhesive on a printed circuit board, and contacting the conformal coating material with the electronic adhesive to obtain a sample plate to be detected; performing a temperature cycle environment test and a humid and hot environment test on the to-be-tested sample plate to obtain a test sample plate; obtaining the difference between the physicochemical properties of the conformal coating material and the electronic adhesive before and after the test, wherein the physicochemical properties comprise at least one of surface appearance, conductivity, organic matrix material components, thermal decomposition temperature, surface insulativity and appearance of the interface of the conformal coating material and the electronic adhesive; and evaluating the compatibility between the conformal coating material and the electronic adhesive according to the difference of the physicochemical properties. According to the method, the compatibility evaluation dimension and standard of the conformal coating material and the electronic adhesive are defined, and the risks of short circuit, degumming, failure and the like of electronic products are reduced.

The application belongs to the technical field of soil improvement, and relates to a soil improvement and vegetation recovery method for a temporary sand gravel road in an alpine desert area.The method is characterized in that: matured manure, plant straw and the like are made into activated organic matrix, and are compounded with clay, diatomite, a compound microbial agent and the like to form a microbial improvement agent; sodium-based bentonite, potassium polyacrylate and the like are used to prepare gel water-retaining particles.In gullies, the gel water-retaining particles, the microbial improvement agent, the activated organic matrix and a composite material thereof are layered and laid from bottom to top, and finally, soil is covered and shrub branches are covered, and a film-forming agent is used for protection.After seeding of pasture, precision irrigation is implemented.The application realizes multifunctional synergy of water retention, nutrient supply, microbial activation and physical protection, significantly improves soil fertility, water-retaining capacity and vegetation survival rate, has the characteristics of high repair efficiency, long-lasting effect and strong environmental adaptability, and provides a reliable solution for ecological restoration in an alpine desert area.